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Effect of Drought Stress on Grain Quality Attributes in Wheat (Triticum aestivum L.) Varieties

Author: Dommalapati Sudhakara Rao, Midathala Raghavendra, Parveen Gill, Shashi Madan and Renu Munjal

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Abstract

Drought stress severely limits wheat crop production and adversely affects grain quality. The effect is more severe when the grain filling stage of crop coincidence with drought. The nutritional complement of stressed grains is significantly decreased which will contribute to malnutrition to the consumers whose staple food is wheat. The present study aims to evaluate some quality attributes to assess the extent of effect caused in wheat grains and the data obtained would be used for the development of better drought-tolerant wheat varieties. Two wheat varieties viz. WH 1105 and WH 1025 were grown in the field under drought stress and irrigated conditions, grains were selected after harvest of the crop and evaluated for quality traits. Some quality attributes such as grain appearance score, hectoliter weight, grain hardness, crude protein content, wet and dry gluten were evaluated in two wheat varieties viz. WH 1105 and WH 1025. Grain appearance score of 5.9 was observed in WH 1105 in

Keywords

Wheat (Triticum aestivum L.), drought stress, grain quality attributes, grain appearance score, hectolitre weight, grain hardness, crude protein content, wet gluten and dry gluten.

Conclusion

Grain appearance score of WH 1105 is unchanged under irrigated and drought conditions while the score is slightly decreased in WH 1025 under drought stress condition. — Hectolitre weight decreased under drought stress with more decrease was observed in WH 1025 as compared to WH 1105. — Grain hardness decreased under drought with more decrease in WH 1105 than WH 1025. — Crude protein and gluten content increased under drought stress with more increase was observed in WH 1105 than WH 1025.

References

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How to cite this article

Rao, D.S., Raghavendra, M., Gill, P., Madan, S. and Munjal, R. (2021). Effect of Drought Stress on Grain Quality Attributes in Wheat (Triticum aestivum L.) varieties. Biological Forum – An International Journal, 13(3): 58-63.